package cn.chen.miaosha.util;

import org.apache.commons.codec.digest.DigestUtils;

public class MD5Util {

    public static String md5(String src){
        return DigestUtils.md5Hex(src);
    }

    //固定salt
    private static final String salt = "1a2b3c4d";

    public static String inputPassToFrom(String inputPass){
        String str = "" + salt.charAt(0) + salt.charAt(2) + inputPass + salt.charAt(5) +salt.charAt(4);
        return md5(str);
    }

    public static String fromPassToDBPass(String fromPass, String salt){
        String str = "" + salt.charAt(0) + salt.charAt(2) + fromPass + salt.charAt(5) +salt.charAt(4);
        return md5(str);
    }

    public static String inputPassToDBPass(String input,String saltDB){
        String fromPass = inputPassToFrom(input);
        String dbPass = fromPassToDBPass(fromPass,saltDB);
        return dbPass;
    }

//    public static void main(String[] args) {
//        System.out.println(inputPassToFrom("123456"));
//        System.out.println(fromPassToDBPass(inputPassToFrom("123456"),"1a2b3c4b"));
//        System.out.println(inputPassToDBPass("123456","1a2b3c4d"));
//    }

}
